FieldManager.GetChildren & ObjectFactory

Kevin Fairclough posted on Monday, September 28, 2009

I need to cascade data updates in the ObjectFactory to children, does the FieldData contain children of children? or do I have recursively call GetChildren for each child?

TIA
Kevin

JonnyBee replied on Monday, September 28, 2009

Hi,

FieldManager contains only the fields of one of an object - so you will have to go recursively to get the grandchilden and their children.

/jonnybee

Kevin Fairclough replied on Tuesday, September 29, 2009

Thanks

Kevin Fairclough replied on Thursday, October 01, 2009

I'm looking at the CSLA source, how does the Child_Update get cascaded to grand-children etc in the current DataPortal,  the FieldManager only gets the current children and calls ChildDataPortal.Update. Does the BO developer have to manually call FieldManager.UpdateChildren() on the child object's Child_Update to update grandchildren?  I thought this was automatic using FieldManager.

JonnyBee replied on Thursday, October 01, 2009

Hi,

The BO developer will have to call FieldManager.UpdateChildren in the child objects Child_Update because you may want to send additional/different parameters to the child_Update method.

For each level you have dynamic methods called (dynamic in terms of parameters) - and we use that a lot. Imagine for example sending Parent from the previous level into the Child_Insert or Child_Update method (and not the list - which is the child objects parent) .

Kevin Fairclough replied on Friday, October 02, 2009

Thanks JonnyBee

This Parent thing is confusing me a little I think because of the lists,  the real parent of the object is not the list.